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  • MT8880 IC - DTMF Encoder IC

The MT8880 is a monolithic DTMF transceiver with call progress filter. It is fabricated in Mitel’s ISO2- CMOS technology, which provides low power dissipation and high reliability. The DTMF receiver is based upon the industry standard MT8870 monolithic DTMF receiver; the transmitter utilizes a switched capacitor D/A converter for low distortion, high accuracy DTMF signalling. Internal counters provide a burst mode such that tone bursts can be transmitted with precise timing. A call progress filter can be selected allowing a microprocessor to analyze call progress tones. A standard microprocessor bus is provided and is directly compatible with 6800 series microprocessors. 


Complete DTMF transmitter/receiver 

• Central office quality 

• Low power consumption 

• Microprocessor port 

• Adjustable guard time 

• Automatic tone burst mode 

• Call progress mode 


Symbol Parameter Min Max Units
VDD DC Power Supply Voltage 
6 V
VI Voltage on any pin  VSS-0.3  VDD+0.3 V
II Current at any pin (other than supply)
10 m A
TSTG Storage temperature -65 150 °C
PD Package power dissipation
1000  m W

Related Documents:-

 MT8880 IC Data Sheet

Brand/Manufacturer Generic
Country Of Origin China
Packer / Importer Address Constflick Technologies Limited, Building No 13 and 14, 3rd Floor, 2nd Main, Siddaiah Road, Bangalore, Karnataka - 560027 India.
MRP Rs. 171.1 (Inclusive of all Taxes)
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MT8880 IC - DTMF Encoder IC

  • Product Code: EC-0460
  • Availability: 112
  • Rs.145.00
  • (Excluding 18% GST)